Predicted to enable sphingolipid delta-4 desaturase activity and sphingosine hydroxylase activity. Predicted to be involved in ceramide biosynthetic process and sphinganine metabolic process. Predicted to act upstream of or within sphingolipid biosynthetic process. Predicted to be located in endoplasmic reticulum membrane. Predicted to be integral component of membrane. Orthologous to human DEGS2 (delta 4-desaturase, sphingolipid 2). [provided by Alliance of Genome Resources, Apr 2022]