Predicted to enable protein-macromolecule adaptor activity. Involved in phosphatidylserine metabolic process; positive regulation of CDP-diacylglycerol-serine O-phosphatidyltransferase activity; and positive regulation of serine C-palmitoyltransferase activity. Predicted to be located in endoplasmic reticulum membrane and plasma membrane. Predicted to be active in membrane. Orthologous to human SERINC2 (serine incorporator 2). [provided by Alliance of Genome Resources, Apr 2022]