KIAA0562, also known as CEP104 (centrosomal protein 104), is a gene encoding a centrosomal protein that is essential for ciliogenesis and the structural integrity of the cilium tip. During ciliogenesis, CEP104 is translocated from the distal tip of the centriole to the elongated cilium tip. CEP104 is expressed in a variety of cell types, including tissues such as testis and kidney. Mutations in its gene are associated with the autosomal recessive disorder Joubert syndrome, which is characterized by distinctive mid-hindbrain and cerebellar malformations, actinic dyskinesia, irregular breathing, developmental delay, and ataxia. In studies, inhibitors of CEP104 such as Cytochalasin D and Vismodegib have been used to investigate their specific role in cellular function.