Acts upstream of or within several processes, including negative regulation of B cell apoptotic process; negative regulation of ceramide biosynthetic process; and negative regulation of serine C-palmitoyltransferase activity. Predicted to be located in endoplasmic reticulum. Predicted to be part of SPOTS complex. Is expressed in lung. Orthologous to human ORMDL3 (ORMDL sphingolipid biosynthesis regulator 3). [provided by Alliance of Genome Resources, Apr 2022]