Dual-specificity phosphatase. Required for centrosome separation and productive cytokinesis during cell division. Dephosphorylates SIRT2 around early anaphase. May dephosphorylate the APC subunit FZR1/CDH1, thereby promoting APC-FZR1 dependent degradation of mitotic cyclins and subsequent exit from mitosis (By similarity). Required for normal hearing (PubMed:29293958). H2O + O-phospho-L-tyrosyl-[protein] = L-tyrosyl-[protein] + phosphate H2O + O-phospho-L-seryl-[protein] = L-seryl-[protein] + phosphate H2O + O-phospho-L-threonyl-[protein] = L-threonyl-[protein] + phosphate Interacts with KIF20A. Interaction is required to localize CDC14 to the midzone of the mitotic spindle (By similarity). Centrosomal during interphase, released into the cytoplasm at the onset of mitosis. Subsequently localizes to the mitotic spindle pole and at the central spindle (By similarity). Present along both the transient kinocilia of developing cochlear hair cells and the persistent kinocilia of vestibular hair cells (PubMed:27259055). Expressed in the inner ear. Composed of two structurally equivalent A and B domains that adopt a dual specificity protein phosphatase (DSP) fold. Belongs to the protein-tyrosine phosphatase family. Non-receptor class CDC14 subfamily.