Involved in regulation of myelination. Acts upstream of or within adult locomotory behavior and neurogenesis. Located in extracellular space. Is expressed in several structures, including adipose tissue; alimentary system; nervous system; reproductive system; and sensory organ. Human ortholog(s) of this gene implicated in arthrogryposis multiplex congenita-1 and childhood absence epilepsy. Orthologous to human LGI4 (leucine rich repeat LGI family member 4). [provided by Alliance of Genome Resources, Apr 2022]