Galactose-binding protein which recognizes specific carbohydrate structures and agglutinates a variety of animal cells by binding to cell-surface glycoproteins and glycolipids. May be a calcium-dependent lectin. Homodimer; disulfide-linked. Expressed by the venom gland. Met-33 has been shown to be oxidized to methionine sulfoxide but this probably results from sample treatment prior to mass spectrometry. Belongs to the true venom lectin family.