The function of NNT (nicotinamide nucleotide transhydrogenase, ENSG00000112992) is as follows. The transhydrogenation between NADH and NADP is coupled to respiration and ATP hydrolysis and functions as a proton pump across the membrane (By similarity). May play a role in reactive oxygen species (ROS) detoxification in the adrenal gland (PubMed:22634753). .