MGI:109583Homozygous null mutants die by E9.5 with abnormally patterned enlarged brains and defective placentas. Heterozygotes develop a range of neoplasms. Conditional mutants demonstrate effects on basic processes of proliferation, differentiation and apoptosis. KO of the alpha isoform affects mitophagy and causes olfactory, spatial learning and contextual fear memory deficits and increases susceptibility to induced cardiac injury.