Calcium-dependent beta-galactose specific lectin. Binds 2 calcium ions per subunit. Homodecamer consisting of two homopentamer units. Pentraxin (or pentaxin) have a discoid arrangement of 5 non-covalently bound subunits. Oviduct. Highest expression levels were detected in the pars convoluta with lower levels detected in the pars recta. No expression was detected in the pars uterina. Glycosylated. Belongs to the pentraxin family.