Mediates the NAD(+) import into peroxisomes. Favors the NAD(+)(in)/AMP(out) antiport exchange, but is also able to catalyze a low unidirectional transport that might be essential under special conditions. Transports CoA, dephospho-CoA, acetyl-CoA, adenosine 3',5'-diphosphate (PAP), NAD(+), AMP, ADP and NADH, but has no activity with ATP, GTP, GDP, NADPH, NADP(+) or FAD. Required for peroxisomes proliferation. Inhibited by pyridoxal 5'-phosphate, bathophenanthroline, tannic acid, mersalyl, mercuric chloride and bromocresol purple. Homodimer. Expressed in cotyledons, hypocotyls, vascular tissues, trichomes, hydathodes, seeds, pedicels, flowers and stigma. No germination or growth inhibition, but delayed storage oil mobilization. Decreased sensitivity to 4-(2,4-dichlorophenoxy)butanoic acid (2,4-DB), a precursor converted in vivo by beta-oxidation into the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D). Enlarged peroxisomes. Belongs to the mitochondrial carrier (TC 2.A.29) family. Was originally thought to be an adenine nucleotide carrier.