Catalyzes the NADPH-dependent reduction of 1,5-anhydro-D-fructose (AF) to 1,5-anhydro-D-glucitol (By similarity). Has low NADPH-dependent reductase activity towards 9,10-phenanthrenequinone (in vitro) (, ).
Subcellular locations: Cytoplasm
Specifically expressed in testis (, ). Expressed in testicular germ cells and testis interstitial cells .