Acts as a modulator of condensin function, possibly by binding to the condensin SMC subunits and thereby inhibiting their function. Negatively regulates the condensin I complex in mitotic chromosome segregation. Negatively regulates the condensin I-like dosage compensation complex, which functions in the regulation of X chromosome-linked gene transcription, by limiting the association of the complex with the X chromosomes. Interacts with dpy-27, mix-1, dpy-28, dpy-26, capg-1 and smc-4. Expressed in the germline. Expressed throughout development and in adult animals. Belongs to the SMC family.