. "Catalysis of the reaction: (R)-mevalonate + CoA + 2 NAD(+) = (S)-3-hydroxy-3-methylglutaryl-CoA + 2 H(+) + 2 NADH." . . "HMG-CoA reductase activity" . "hydroxymethylglutaryl-CoA reductase activity" . "3-hydroxy-3-methylglutaryl-coenzyme A reductase activity" . "(R)-mevalonate:NAD+ oxidoreductase (CoA-acylating)" . "3-hydroxy-3-methylglutaryl coenzyme A reductase activity" . "beta-hydroxy-beta-methylglutaryl CoA-reductase activity" . "beta-hydroxy-beta-methylglutaryl coenzyme A reductase activity" . "hydroxymethylglutaryl coenzyme A reductase activity" . "hydroxymethylglutaryl-CoA reductase (NADH) activity" . . .