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). May be a component of the FTS/Hook/FHIP complex (FHF complex), composed of AKTIP/FTS, FHIP1B, and one or more members of the Hook family of proteins HOOK1, HOOK2, and HOOK3. May interact directly with AKTIP/FTS. Belongs to the FHIP family. Truncated N-terminus. Contaminating sequence. Potential poly-A sequence. Aberrant splicing.