What is the function of gastin?

Gastrin is a hormone produced by the G-cells in the stomach lining. Its primary function is to stimulate the secretion of gastric acid (hydrochloric acid) from the parietal cells in the stomach, which aids in digestion. Gastrin also promotes gastric motility and helps regulate the growth of the gastric mucosa. Overall, it plays a crucial role in the digestive process by enhancing the acidity of the stomach contents.