Predicted to enable retinol isomerase activity and sphingolipid delta-4 desaturase activity. Predicted to be involved in ceramide biosynthetic process and myelin maintenance. Predicted to be located in mitochondrion. Human ortholog(s) of this gene implicated in hypomyelinating leukodystrophy. Orthologous to human DEGS1 (delta 4-desaturase, sphingolipid 1). [provided by Alliance of Genome Resources, Apr 2022]