Phosphorylates NAD(+) to produces NADP(+) in a calmodulin calcium-dependent manner (PubMed:31554701). Does not possess activity toward NADH (PubMed:31554701). Has broad specificity for the phosphoryl donor, as ATP, CTP, GTP and UTP can be used interchangeably and produce similar efficiencies (PubMed:31554701). May play a role in producing NADP(H) needed to regulate the elicitor-induced reactive oxygen species (ROS) burst by sustaining the activity of NADPH oxidases (PubMed:31554701). Does not seem to play a role in photosynthesis-driven growth (PubMed:31554701). ATP + NAD(+) = ADP + H(+) + NADP(+) Interacts with calmodulin (CaM) in a calcium Ca(2+)-dependent manner in vitro. No visible phenotype under normal growth conditions.