Mediates the NAD(+) import into chloroplast. Favors the NAD(+)(in)/ADP or AMP(out) antiport exchange, but is also able to catalyze a low unidirectional transport (uniport) of NAD(+). Transports NAD(+), nicotinic acid adenine dinucleotide, nicotinamide mononucleotide, nicotinic acid mononucleotide, FAD, FMN, TTP, TDP, TMP, UTP, UDP, UMP, CTP, CDP, CMP, GTP, GDP, GMP, 3'-AMP, ATP, ADP, AND AMP, has low transport activity with cAMP, pyrophosphate, NADH and alpha-NAD(+), and has no activity with NADP(+), NADPH, nicotinamide, nicotinic acid, adenosine, thiamine mono- or diphosphate, inorganic phosphate, CoA, folate, NaCl, malate, malonate, citrate, fumarate, aspartate, glutamate, S-adenosylmethionine, lysine, arginine, and ornithine. Inhibited by pyridoxal 5'-phosphate, bathophenanthroline, tannic acid, mersalyl, mercuric chloride, p-hydroxymercuribenzoate, p-hydroxymercuribenzoate sulfonate, bromocresol purple and N-ethylmaleimide. Highly expressed in young leaf mesophyll cells, root tips and at the branches of adventitious roots. Low expression in all flower tissues and not detected in siliques and seeds. Appears to be a chloroplast envelope-located membrane protein lacking an N-terminal-located transit peptide. Belongs to the mitochondrial carrier (TC 2.A.29) family.