Which hormone is opposite to rennin?

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Rennin is an enzyme which digest on proteins present in milk. Renin is a hormone secreted by kidneys.
 

Rennin	Renin
Rennin is an enzyme secreted by gastric glands.	Renin is a hormone secreted by kidneys.
It digests protein caseinogen present in milk into solid casein.	It is produced by juxtaglomerular cells of kidney when blood pressure falls. It converts angiotensinogen in blood to angiotensin I and further to angiotensin II. Angiotensin II, being a powerful vasoconstrictor, increases the glomerular blood pressure and thereby GFR.

 
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