The protein encoded by this gene is a member of the immunoglobulin superfamily. It is a glycosylphosphatidylinositol (GPI)-anchored neuronal membrane protein that functions as a cell adhesion molecule. It may play a role in the formation of axon connections in the developing nervous system. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2011],CNTN1,F3,GP135,MYPCN,Epigenetics & Nuclear Signaling,Cell Biology & Developmental Biology,Cell Adhesion,Neuroscience,CNTN1