Though he was a death god, Seker was also the patron of the living, mainly the workers who built the necropolis and the craftsmen who made tomb artifacts. He was also the patron of those who made ritual objects and substances used in mummification.
His dedicated festival was the Henu Festival, and was held every year in Thebes. The festival celebrated Osiris' resurrection as Seker. It involved a huge procession with the image of Seker being carried in a gilded boat.