RAB11FIP3 is a Rab11 GTPase effector protein that functions as a molecular adaptor linking Rab11 to dynein motor complexes on endosomes 1. Its primary roles include regulating endocytic recycling, cytokinesis, and ciliogenesis through coordinated membrane trafficking. During interphase, the Rab11-RAB11FIP3-dynein complex directs peripheral sorting endosomes along microtubules toward the centrosome, establishing the endocytic recycling compartment 21. RAB11FIP3 facilitates dynein-dynactin interactions and enhances dynein processivity 3. During cytokinesis, RAB11FIP3-containing endosomes are recruited to the cleavage furrow through interactions with ARF6-exocyst and RACGAP1-MKLP1 complexes, delivering membrane for abscission 45. In ciliogenesis, RAB11FIP3 participates in the Rab11-Rabin8-Rab8 cascade, assembling ciliary targeting complexes that direct preciliary vesicle trafficking to the mother centriole 67. Dysregulation of RAB11FIP3 is implicated in cancer progression: elevated RAB11FIP3 promotes EGFR recycling in breast and thyroid cancers 89, while in gastric cancer, the IKZF4/NONO-RAB11FIP3 axis facilitates PD-L1 endosomal recycling to promote immune evasion 10. Alternatively spliced RAB11FIP3 isoforms contribute to diabetic foot ulcer pathogenesis through HIF-1α regulation 11. These findings establish RAB11FIP3 as a critical trafficking regulator with significant disease relevance.