The protein encoded by this gene belongs to the complex I NDUFB4 subunit family. Mammalian complex I is composed of 45 different subunits. This protein has NADH dehydrogenase activity and oxidoreductase activity. It transfers electrons from NADH to the respiratory chain. The immediate electron acceptor for the enzyme is believed to be ubiquinone.
B15; CI-B15; complex I B15 subunit; Complex I-B15; NADH dehydrogenase (ubiquinone) 1 beta subcomplex, 4, 15kDa; NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 4; NADH-ubiquinone oxidoreductase B15 subunit