cob(II)alamin reductase activity

Known as: vitamin B(12r) reductase activity, vitamin B12r reductase activity, B12r reductase activity

Catalysis of the reaction: 2 cob(I)alamin + H(+) + NAD(+) = 2 cob(II)alamin + NADH. [EC:1.16.1.4, RHEA:17484]

National Institutes of Health