Predicted to enable dihydroceramidase activity. Predicted to be involved in several processes, including regulation of water loss via skin; skin development; and sphingosine biosynthetic process. Predicted to act upstream of or within ceramide catabolic process and regulation of lipid metabolic process. Predicted to be located in endoplasmic reticulum. Orthologous to human ACER1 (alkaline ceramidase 1). [provided by Alliance of Genome Resources, Apr 2022]