Ca(2+) release-activated Ca(2+)-like (CRAC-like) channel subunit which mediates Ca(2+) influx and increase in Ca(2+)-selective current by synergy with the Ca(2+) sensor, stim-1. Required for Ca(2+) and IP3-dependent contractile activity of sheath cells and the spermatheca. Affects brood size and somatic cell function. Expressed in gonad sheath cells, hypodermis, intestine and spermatheca. Coexpressed with stim-1. Worms exhibit an inhibition of intestinal Ca(2+) release activated Ca(2+) channel activity but has no effect on the initiation of posterior body wall muscle contraction, intestinal Ca(2+) oscillations or intestinal ER Ca(2+) store homeostasis. Attenuation also affects sterility and brood size. Belongs to the Orai family.