Predicted to enable enzyme binding activity and protein-macromolecule adaptor activity. Predicted to be involved in several processes, including phosphatidylserine metabolic process; positive regulation of CDP-diacylglycerol-serine O-phosphatidyltransferase activity; and positive regulation of serine C-palmitoyltransferase activity. Predicted to act upstream of or within phospholipid biosynthetic process. Located in plasma membrane. Is expressed in ganglia and small intestine. Orthologous to human SERINC1 (serine incorporator 1). [provided by Alliance of Genome Resources, Apr 2022]