How to check if a string is a uniqueidentifier?

Is there an equivalent to IsDate or IsNumeric for uniqueidentifier (SQL Server)? Or is there anything equivalent to (C#) TryParse?

Otherwise I'll have to write my own function, but I want to make sure I'm not reinventing the wheel.

The scenario I'm trying to cover is the following:

SELECT something FROM table WHERE IsUniqueidentifier(column) = 1