Predicted to act upstream of or within several processes, including negative regulation of cell proliferation involved in contact inhibition; phagolysosome assembly; and positive regulation of extrinsic apoptotic signaling pathway in absence of ligand. Predicted to be located in autophagosome and endoplasmic reticulum. Orthologous to human SRPX (sushi repeat containing protein X-linked). [provided by Alliance of Genome Resources, Apr 2022]