The function of CPLANE1 (ciliogenesis and planar polarity effector complex subunit 1, Ensembl gene identifier ENSG00000197603) is as follows. Involved in ciliogenesis (PubMed:25877302, PubMed:35582950). Involved in the establishment of cell polarity required for directional cell migration. Proposed to act in association with the CPLANE (ciliogenesis and planar polarity effectors) complex. Involved in recruitment of peripheral IFT-A proteins to basal bodies (By similarity). {ECO:0000250|UniProtKB:Q8CE72, ECO:0000269|PubMed:35582950, ECO:0000305|PubMed:25877302}.