Based on limited published evidence, BICDL2 functions as a cargo adaptor protein involved in vesicular transport. Structurally annotated functions include protein binding and mediation of Golgi to secretory granule transport via microtubule-dependent mechanisms. Recent studies identified BICDL2 as a putative pyroptosis-related biomarker in chr16 low back pain 1 and demonstrated that the rs9927163 variant functions as an eQTL for BICDL2 expression in whole blood, with regulatory roles in T cell-specific chr16 2. However, direct functional studies of BICDL2 are lacking, and its specific molecular role in disease pathogenesis remains unclear.