Mitochondrial membrane carrier protein that mediates the import of NAD(+) into mitochondria ( ). Mitochondrial NAD(+) is required for glycolysis and mitochondrial respiration ( ). Compared to SLC25A52, SLC25A51-mediated transport is essential for the import of NAD(+) in mitochondria . The transport mechanism, uniport or antiport, its electrogenicity and substrate selectivity, remain to be elucidated.
Subcellular locations: Mitochondrion inner membrane