Predicted to enable fibroblast growth factor binding activity. Predicted to be involved in cell migration; negative regulation of fibroblast growth factor receptor signaling pathway; and regulation of protein localization to membrane. Predicted to act upstream of or within regulation of signal transduction. Predicted to be located in several cellular components, including collagen-containing extracellular matrix; extracellular region; and side of membrane. Predicted to be active in cell surface and synapse. Is expressed in several structures, including ectoderm; epidermis; nervous system; pharyngeal arch; and ventral mesenchyme. Orthologous to human GPC1 (glypican 1).