Enables phytoceramidase activity. Involved in ceramide catabolic process; inflammatory response; and sphingosine biosynthetic process. Predicted to be integral component of Golgi membrane. Predicted to be integral component of endoplasmic reticulum membrane. Is expressed in hair; integumental system; vibrissa; and vibrissa follicle. Orthologous to human ACER3 (alkaline ceramidase 3). [provided by Alliance of Genome Resources, Apr 2022]