Enables aldehyde dehydrogenase (NAD+) activity. Predicted to be involved in cellular aldehyde metabolic process. Located in lipid droplet. Is expressed in several structures, including genitourinary system; integumental system; limb; sensory organ; and tail. Orthologous to human ALDH3B2 (aldehyde dehydrogenase 3 family member B2). [provided by Alliance of Genome Resources, Apr 2022]