Predicted to enable protein-macromolecule adaptor activity. 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 be located in several cellular components, including Golgi apparatus; centrosome; and myelin sheath. Predicted to be active in membrane. Orthologous to human SERINC5 (serine incorporator 5). [provided by Alliance of Genome Resources, Apr 2022]