The phrase "a cornerstone function" is correct and usable in written English.
It can be used to describe a fundamental or essential role that something plays within a system or process.
Example: "In our organization, effective communication is a cornerstone function that supports all other operations."
Alternatives: "a fundamental role" or "a key function".
It is widely accepted that good ligament balance is a cornerstone for good function and survival after TKA.
Second, Asch emphasized that independent thought and disagreement among group members is a cornerstone of group functioning.
It is a core constitutional function, a cornerstone of the structural checks and balances on which our federal government is built.
The function of a cornerstone is to protect its own integrity to support a wider security structure, not to dissipate its cohesion by absorbing members and responsibilities beyond prudent limits.
Lesion studies suggesting more precise localization of specific linguistic functions remain a cornerstone to this day in aphasic research.
Permanent residents in Denmark are provided with a personal identification number, which functions as a cornerstone in efficient linkage between all registers containing information at an individual level.
The concept of an essential gene, whose targeted inactivation results in lethality of a genetically modified organism, is a cornerstone of genetic dissection of gene function.
Creation of lethal and synthetic lethal mutations in an experimental organism is a cornerstone of genetic dissection of gene function, and is related to the concept of an essential gene.
As a result, screening for kidney disease using urinary albumin and serological markers of kidney function has become a cornerstone of diabetes care, facilitating targeted interventions to prevent CVD and kidney disease progression (4).
In this context, maxillofacial rehabilitation through prosthetic restoration is a cornerstone of efforts to restore the function and form of patients with missing or disfigured orofacial structures [ 12, 13].
