Predicted to enable protein-macromolecule adaptor activity. Predicted to be involved in several processes, including innate immune response; phosphatidylserine metabolic process; and response to virus. Predicted to act upstream of or within positive regulation of endoplasmic reticulum stress-induced intrinsic apoptotic signaling pathway. Predicted to be located in Golgi apparatus and plasma membrane. Predicted to be active in membrane. Orthologous to human SERINC3 (serine incorporator 3). [provided by Alliance of Genome Resources, Apr 2022]