Predicted to enable NADP binding activity; flavin adenine dinucleotide binding activity; and glutathione-disulfide reductase (NADPH) activity. Predicted to be involved in glutathione metabolic process. Is an ortholog of C. elegans gsr-1. In C. elegans, gsr-1 is involved in several processes, including cell redox homeostasis; ecdysis, collagen and cuticulin-based cuticle; and response to superoxide.