Stimulates renal phosphate reabsorption, and could therefore prevent hypercalcemia. Homodimer; disulfide-linked. Expressed in most tissues, with the highest levels in ovary, prostate, heart, kidney and thyroid. In the kidney, expression is confined to the nephron, specifically in the distal convoluted tubule and in the collecting tubule. Not detected in the brain, liver, spleen, peripheral blood leukocytes and adrenal medulla. Belongs to the stanniocalcin family.