Predicted to enable carbohydrate binding activity and pattern recognition receptor activity. Acts upstream of or within endocardial cushion morphogenesis; pronephric glomerulus morphogenesis; and regulation of glomerular filtration. Predicted to be located in several cellular components, including extracellular region; interphotoreceptor matrix; and photoreceptor outer segment. Predicted to be active in external side of plasma membrane. Is expressed in several structures, including anterior neural keel; mesoderm; otic vesicle; pericardial region; and semicircular canal. Human ortholog(s) of this gene implicated in intracranial aneurysm. Orthologous to human VCAN (versican).