obsolete S-adenosylmethionine:2-demethylmenaquinol-7 methyltransferase activity (obsolete GO:0102955)
OBSOLETE. Catalysis of the reaction: 2-demethylmenaquinol-7 + S-adenosyl-L-methionine = menaquinol-7 + S-adenosyl-L-homocysteine + H+.