Enables alditol:NADP+ 1-oxidoreductase activity. Predicted to be involved in daunorubicin metabolic process and doxorubicin metabolic process. Located in Golgi apparatus and nuclear envelope. Orthologous to human AKR7A2 (aldo-keto reductase family 7 member A2). [provided by Alliance of Genome Resources, Apr 2022]