MGI:1309489Mutation of this gene results in cleft palate and perinatal lethality in hemizygous males and death within 2 weeks in females on a C57BL/6J background. Some female animals on a CD1 background survive to adulthood exhibiting patchy fur, wrinkled skin, a kinked tail and spine, and give birth to small and infrequent litters. Male and female animals on all genetic backgrounds exhibit reduced head size, shortened jaw, and a pointed snout.