Predicted to enable carbohydrate binding activity and sulfate binding activity. Involved in glomerular filtration and mesangial cell-matrix adhesion. Located in apical plasma membrane; basal plasma membrane; and lysosome. Part of glomerular endothelium fenestra. Biomarker of diabetic retinopathy. Orthologous to human CD34 (CD34 molecule). [provided by Alliance of Genome Resources, Apr 2022]