obsolete decaprenyldihydroxybenzoate methyltransferase activity (obsolete GO:0044595)
OBSOLETE. Catalysis of the reaction: S-adenosyl-L-methionine + 3-decaprenyl-4,5-dihydroxybenzoate = S-adenosyl-L-homocysteine + 3-decaprenyl-4-hydroxy-5-methoxybenzoate.