16S rRNA (guanine(1516)-N(2))-methyltransferase activity
Catalysis of the reaction: guanosine(1516) in 16S rRNA + S-adenosyl-L-methionine = N(2)-methylguanosine(1516) in 16S rRNA + S-adenosyl-L-homocysteine + H+.
GO:0008990
rRNA (guanine-N2-)-methyltransferase activity
is_a