I don't think there are many lurchers, if raised properly and taught some basic obedience, that won't work the gun to some extent. At least flushing to the gun and retrieving shot game.  
My old bitch picked it up after a handful of outings and whilst no expert she certainly did the job. 
Your pup will be more than capable if it's something you fancied in the future. 
An all rounder for me has to do all the above, jump, retrieve to hand, work with ferrets, work with bushing dogs, and also have a good temperament and be a pleasure to be around in general. Just as happy in the pub as in the fiel