The protein encoded by this gene belongs to a subclass of the netrin family called netrin-G proteins. Unlike classic netrins, which act as diffusible chemoattractants, netrin-Gs are glycosylphosphatidylinositol-anchored membrane proteins that interact with specific transmembrane proteins. In mouse, this gene is preferentially expressed in the cerebral cortex, habenular nucleus and superior colliculus. Knockout mutant mice display a lack of behavioral startle in response to acoustic stimuli. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2015]