The phrase "a sort of utility" is correct and usable in written English.
It can be used when describing something that serves a purpose or function, but is not strictly defined or categorized.
Example: "The app provides a sort of utility for managing daily tasks, making it easier to stay organized."
Alternatives: "a kind of tool" or "a type of resource."
Nevertheless, federal prosecutors claim that over the years, Mr. Watts has served as a sort of utility infielder for the Gambino squad, doing a variety of family business while still looking out for himself.
As the story opens, in the late 1960's, Denny is a sort of utility infielder on the Wright family team: she's Ernest's mistress as well as his secretary; the four-hand piano partner of his wife, Nancy; and a general factotum and retainer, which is a nice way of saying that Ernest and Nancy and their three children all boss her around and take her for granted.
The financial sector is supposed to function as a sort of utility for manufacturing, agriculture and other elements of what economists call the "real" economy.
It still doesn't, even with the arrival of the 2001 Allroad quattro, a sort-of sport utility with the emphasis firmly on sport.
One option would be to reclassify broadband service as a sort of basic utility subject to strict regulation, like telephone service.
Aside from some hugely popular exclusives – a new Batman Arkham City adventure just for the Wii U, with the emphasis on puzzle solving using the new additional screen which also serves as a sort of virtual utility belt, nice feature for middle-aged gamers like me who get confused trying to find where the gear you collect during the game is stashed... it's now right in front of you, Grandpa!
Internet access should be considered a human right, and a sort of local utility similar to electricity.
For politicians, championing subsidized high-speed access (whether wireless or wired) may be a way to court constituents and turn Internet access into a sort of public utility.
The Cielo concept, a sort of sport-utility-vehicle-meets-convertible, arrived along with the ungainly Pontiac Aztek in the class of 1999.
