Enables long-chain fatty acid binding activity; protein tyrosine kinase binding activity; and ubiquitin-like protein ligase binding activity. Involved in negative regulation of protein ubiquitination; positive regulation of apoptotic process; and positive regulation of cysteine-type endopeptidase activity involved in apoptotic signaling pathway. Located in several cellular components, including cytosol; nucleoplasm; and perinuclear region of cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]