rRNA (adenine-N6,N6-)-dimethyltransferase activity https://github.com/geneontology/go-ontology/issues/14459 GO:0043790 18S rRNA dimethylase activity GO:0000179 dimethyladenosine transferase activity Reactome:R-HSA-6790994 Catalysis of the dimethylation of two adjacent adenine residues in a rRNA, using S-adenosyl-L-methionine as a methyl donor. Reactome:R-HSA-6793066 molecular_function S-adenosylmethionine-6-N', N'-adenosyl(rRNA) dimethyltransferase activity N-methyltransferase activity rRNA (adenine) methyltransferase activity