Probable component of the FTS/Hook/FHIP complex (FHF complex) (PubMed:32073997). FHF complex promotes the distribution of AP-4 complex to the perinuclear area of the cell (PubMed:32073997). . This is the function of FHIP1A (FHF complex subunit HOOK interacting protein 1A, ENSG00000164142).