Plays a role in primary ciliogenesis by modulating actin polymerization. Expressed in tissues rich in motile cilia. Expressed in Kupffer's vesicle at 12 hours post fertilization (hpf). Expressed in brain, neural tube, pronephric ducts, olfactory placode and the eye at 28 hpf. Expressed in ciliated cells of the olfactory placode, ear, neuromasts and pronephric ducts at 48 hpf. Expressed in neuromasts, olfactory sensory neurons and in the ear at 96 hpf (at protein level). Morpholino knockdown of the protein causes curved body, a lack of defined brain structures or necrosis in the developing brain, and eye formation defects at 24 hpf. At 48 hpf, show a reduction in number of ciliated cells within the olfactory organ. Belongs to the CATIP family.