Predicted to enable aldose reductase (NADPH) activity. Involved in fructose biosynthetic process and sorbitol biosynthetic process. Predicted to be active in cytosol. Is expressed in several structures, including Malpighian tubule primordium; adult head; embryonic/larval midgut primordium; ganglia; and gut section. Human ortholog(s) of this gene implicated in 46,XY sex reversal 8. Orthologous to human AKR1B10 (aldo-keto reductase family 1 member B10); AKR1B15 (aldo-keto reductase family 1 member B15); and AKR1C4 (aldo-keto reductase family 1 member C4).