May be involved in the recruitment of DRP2A to the accessory protein complex and in the negative regulation of its GTPase activity. Interacts with FREE1 (PubMed:25699591). Interacts (via SH3 domain) with DRP2A/ADL6 (PubMed:12207647). Binds to SH3P2 (PubMed:28584166). Detected in all tissues except seedlings.