Enables glycosaminoglycan binding activity. Involved in spinal cord development. Acts upstream of or within extracellular matrix organization and positive regulation of cell-substrate adhesion. Located in interstitial matrix. Is expressed in several structures, including cranium; ganglia; sensory organ; ventral grey horn; and ventricular layer. Orthologous to human VIT (vitrin). [provided by Alliance of Genome Resources, Apr 2022]