Reticulon-4 (RTN4)

Developmental neurite growth regulatory factor with a role as a negative regulator of axon-axon adhesion and growth, and as a facilitator of neurite branching. Regulates neurite fasciculation, branching and expansion in the developing nervous system.

Involved in down-regulation of development, insertion of wiring and restriction of plasticity in the adult CNS. Regulates the radial migration of cortical neurons through an RTN4R-LINGO1 containing receptor complex (By similarity).