Molecular function

Catalysis of the reaction: protein N6-(dihydrolipoyl)lysine + NAD+ = protein N6-(lipoyl)lysine + NADH + H+.

E3 component of alpha-ketoacid dehydrogenase complexes activity, L-protein activity, dehydrolipoate dehydrogenase activity, diaphorase activity, dihydrolipoamide dehydrogenase activity, dihydrolipoamide reduction, dihydrolipoamide:NAD+ oxidoreductase, dihydrolipoic dehydrogenase activity, dihydrolipoylprotein reduction, dihydrothioctic dehydrogenase activity, glycine-cleavage system L-protein activity, lipoamide dehydrogenase (NADH) activity, lipoamide oxidoreductase (NADH) activity, lipoamide reductase (NADH) activity, lipoamide reductase activity, lipoate dehydrogenase activity, lipoic acid dehydrogenase activity, lipoyl dehydrogenase activity, protein-6-N-(dihydrolipoyl)lysine:NAD+ oxidoreductase, protein-N6-(dihydrolipoyl)lysine:NAD+ oxidoreductase