ATP-dependent DNA helicase important for chromosome transmission and normal cell cycle progression in G(2)/M (PubMed:10931920). May have a role in changing DNA topology to allow the loading of proteins involved in maintaining sister chromatid cohesion in the vicinity of the centromeres (PubMed:15020404, PubMed:14742714). Has a specific role in chromosome segregation during meiosis II (PubMed:15226378). ATP + H2O = ADP + H(+) + phosphate Interacts with ECO1. Present with 98 molecules/cell in log phase SD medium. Belongs to the DEAD box helicase family. DEAH subfamily. DDX11/CHL1 sub-subfamily.