Find specific functional genes from a list? I have compiled a list of genes that are distinct from 2 different conditions. 
From this list (of about 600 human genes), I want to find out if any of the genes in this list have acetyl transferase function i.e. are acetylases. 

Is there an online platform where I could say put in this list of genes and the output I can select genes which have this property/function? 

I.e some sort of gene annotation for functions for a list of human genes?
BioMart. Filter by your list of genes and a GO term linked to acetyl transferase activity.