Imset was one of the canopic jars. He protected the liver.

Imset, Duamutef, Hapi and Qebehsenuef

There were always four canopic jars in a tomb of a pharaoh. One had the god Hapy. He shares the facial features of a baboon and the lungs were placed in his canopic jar. The next is Qebehsenuef where the intestines were placed. The following is Duamutef, a jackel. The tummy was placed in this god's jar for prtection. The last of the four is Imesty, who is a human god, that the liver of the enbalmed person was placed in for protection. These gods are the sons of Horus, a falcon that was god of the sky.