The phrase "a very different function" is correct and usable in written English.
You can use it to describe a function that significantly differs from another function in terms of purpose or operation.
Example: "In this new software update, the tool serves a very different function compared to the previous version, focusing more on user experience."
Alternatives: "a significantly different role" or "a markedly different purpose."
Although the cameras in Britain were initially justified as a way of combating terrorism, they soon came to serve a very different function.
Despite looking a lot like a kitchen-variety vegetable slicer, Discovery Bay Games new Duo ($40) has a very different function.
Alito said that he considered Hansen's response to be an important concession, because, "Isolated DNA has a very different function from the DNA as it exists in nature.
Contextual analysis may help explain this: Whereas Rapanui monosyllables are grammatical particles and generally precede polysyllabic nouns and verbs, so that monosyllables rarely occur together, isolated rongorongo glyphs are usually found together, suggesting a very different function.
Partially purified preparations of the enzyme have yielded low turnover numbers, suggesting that the purified protein was only a component of a potential complex or that the enzyme responsible possesses a very different function in the uninfected cell and cleaving of the tyrosyl-RNA bond in picornavirus genomic RNA is simply a minor role of the enzyme [18].
Although SlmA is clearly a member of this family of transcriptional regulators, it has a very different function, which is NO (Bernhardt and de Boer, 2005).
For the very different function of energy storage, a molecule identical to one of the building blocks of the nucleic acids (both DNA and RNA) is employed.
Its potential involvement in the generation or maintenance of small RNAs derived from 3'UTRs in somatic cells would imply some very different function.
If it is involved in the generation or maintenance of small RNAs derived from 3'UTRs in somatic cells, this would imply some very different function, perhaps related to the recently demonstrated role of MIWI degradation of RNA transcripts [ 10– 10].
In spite of very different function for the three systems, it is surprising to find that y x for Design II and III are tightly related, with the first being the square of the other.
The corresponding gene products have very different functions (an activator of heat shock 90kDa protein ATPase homolog 1, aminoacyl tRNA synthetase complex-interacting multifunctional protein 2, or mitogen-activated protein kinase 14).
