Predicted to enable several functions, including ATP binding activity; RNA binding activity; and RNA helicase activity. Acts upstream of or within myeloid cell differentiation. Predicted to be active in nucleolus. Is expressed in several structures, including alar plate midbrain region; digestive system; intermediate cell mass of mesoderm; nervous system; and trunk vasculature. Orthologous to human DDX18 (DEAD-box helicase 18).