May play a role in intercellular signaling and in connecting cells with the extracellular matrix. May take part in the regulation of cell motility, growth and differentiation. Binds hyaluronic acid. Interacts with FBLN1. Additional isoforms seem to exist. Cerebral white matter. Isoform V0 and isoform V1 are expressed in the central nervous system, and in a number of mesenchymal and epithelial tissues; the major isoform V2 is restricted to the central nervous system. Disappears after the cartilage development. Phosphorylated by FAM20C in the extracellular medium. Proteolytically cleaved by ADAMTS5 and ADAMTS15 in the pericellular matrix surrounding myoblasts, facilitating myoblast contact and fusion which is required for skeletal muscle development and regeneration. Belongs to the aggrecan/versican proteoglycan family.