function:Endogenous activator of intestinal guanylate cyclase. It stimulates this enzyme through the same receptor binding region as the heat-stable enterotoxins. May be a potent physiological regulator of intestinal fluid and electrolyte transport. May be an autocrine/paracrine regulator of intestinal salt and water transport.,similarity:Belongs to the guanylin family.,tissue specificity:Stomach and intestine.,
Secreted.
Stomach and intestine.
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