Protein fantom (RPGRIP1L)

Negatively regulates signaling through the G-protein coupled thromboxane A2 receptor (TBXA2R) (PubMed:19464661). May be involved in mechanics such as programmed cell death, craniofacial growth, patterning of the limbs, and formation of the left- right axis (By similarity).

Involved in the organization of apical junctions; the purpose is suggested to implicate a NPHP1-4-8 module. Does not appear to be strictly required for ciliogenesis (PubMed:19464661).