MGI:1924487Mice homozygous for a null allele exhibit embryonic lethality with multiorgan defects related to cilia biogenesis. Homozygotes for a gene trap allele show randomized body axis, holoprosencephaly, and microphthalmia. Homozygotes for an ENU-induced allele show heterotaxia, congenital heart anomalies, kidney and eye defects, polydactyly, and cleft palate.