Is predicted to encode a protein with the following domains: CLASP N-terminal domain; Armadillo-type fold; HEAT repeat; CLASP N terminal; Armadillo-like helical; and TOG domain. Is an ortholog of C. elegans cls-1. In C. elegans, cls-1 is involved in microtubule cytoskeleton organization and positive regulation of microtubule depolymerization.