Predicted to enable glucose-6-phosphate dehydrogenase activity. Predicted to be involved in glucose metabolic process and pentose-phosphate shunt, oxidative branch. Predicted to act upstream of or within carbohydrate metabolic process and pentose-phosphate shunt. Predicted to be active in endoplasmic reticulum. Human ortholog(s) of this gene implicated in cortisone reductase deficiency; cortisone reductase deficiency 1; and multiple sclerosis. Orthologous to human H6PD (hexose-6-phosphate dehydrogenase/glucose 1-dehydrogenase).