U6 snRNA (guanine-N(2))-methyltransferase activity
u6 snrna (guanine-n(2))-methyltransferase activity
Catalysis of the reaction: guanosine in U6 snRNA + S-adenosyl-L-methionine = H+ + N(2)-methylguanosine in U6 snRNA + S-adenosyl-L-homocysteine.