Predicted to enable chondroitin sulfate binding activity; heparin binding activity; and hyaluronic acid binding activity. Predicted to be involved in visual perception. Predicted to act upstream of or within extracellular matrix organization. Predicted to be located in interphotoreceptor matrix. Human ortholog(s) of this gene implicated in retinitis pigmentosa and vitelliform macular dystrophy. Orthologous to human IMPG1 (interphotoreceptor matrix proteoglycan 1). [provided by Alliance of Genome Resources, Apr 2022]