Enables dynein heavy chain binding activity. Predicted to be involved in intraciliary retrograde transport; intraciliary transport involved in cilium assembly; and regulation of cilium assembly. Predicted to act upstream of or within cilium assembly and determination of left/right symmetry. Predicted to be located in several cellular components, including centrosome; ciliary transition zone; and motile cilium. Predicted to be part of cytoplasmic dynein complex. Predicted to be active in axoneme and ciliary basal body. Predicted to colocalize with cytoplasmic microtubule. Human ortholog(s) of this gene implicated in asphyxiating thoracic dystrophy. Orthologous to human DYNC2LI1 (dynein cytoplasmic 2 light intermediate chain 1). [provided by Alliance of Genome Resources, Apr 2022]