Acts as a positive regulator of ciliary hedgehog signaling (By similarity). Probable regulator of ciliogenesis involved in limb morphogenesis. In cooperation with CBY1 it is involved in the recruitment and fusion of endosomal vesicles at distal appendages during early stages of ciliogenesis (By similarity). Plays an important role in the mitochondrial function and is essential for maintaining mitochondrial morphology and inner membrane ultrastructure (By similarity). In vitro, can generate membrane curvature through preferential interaction with negatively charged phospholipids such as phosphatidylinositol 4,5-bisphosphate and cardiolipin and hence orchestrate cristae shape (By similarity). Homodimer (via BAR-like domain). Heterodimer with FAM92B (via BAR-like domains). Interacts (via BAR-like domain) with CBY1; this interaction is required for targeting FAM92A to centriole and cilium basal body. Weak punctate vesicular distribution throughout the cytoplasm. Localizes at the distal end of mother centrioles. Extensive colocalization with CBY1 at mother centrioles. The BAR-like domain displays limited similarity to other BAR domains. Belongs to the CIBAR family.