Snake venom endo-hyaluronidase that degrades hyaluronan to smaller oligosaccharide fragments. In venom, it is not toxic by itself, but increases the diffusion of other venom proteins by degrading the extracellular matrix. In addition, it displays antiedematogenic activity (By similarity). Random hydrolysis of (1->4)-linkages between N-acetyl-beta-D-glucosamine and D-glucuronate residues in hyaluronate. Monomer. Expressed by the venom gland. Belongs to the glycosyl hydrolase 56 family.