May play a role in the stabilization of the actin-rich cell cortex during cell division. Associated with the actin network at the onset of mitosis (PubMed:20805893). Associated with spindle microtubules in metaphase (PubMed:20805893). There is a maternal contribution to the expression during the early stages of embryogenesis (PubMed:20805893). Zygotic expression is ubiquitous but reinforced in several embryonic tissues (PubMed:20805893). From stage 11 to 12, accumulates in the developing tracheal system, then in subsets of cells composing the central nervous system (PubMed:20805893). Finally, from stage-15, it is also strongly expressed in the gonads (PubMed:20805893). Embryos homozygous for a null allele of the gene are viable and do not display gross developmental defects, developing to adult stage, albeit with a slightly decreased viability (PubMed:20805893). Homozygous females are sterile, laying rare embryos that display no sign of development (PubMed:20805893). Mutant flies display increased lethality at extreme temperatures (PubMed:20805893).