Secreted thaumatin-like protein that, with calA, plays an essential role in early conidial germination with a possible role in cell wall remodeling (PubMed:16376592, PubMed:17703972). Present in the cell walls of the germinating conidia but not in the germtubes (PubMed:17703972). Expression is inhibited by PKA activity and is subject to glucose repression (PubMed:17703972). Expressed primarily in conidia (PubMed:12409104). Expressed and secreted during germination and early growth (PubMed:16376592, PubMed:17703972). No visible phenotype. The double deletion of cetA and calA results in cell wall defects and lyse during germination, leading to the inhibition of germination (PubMed:17703972). Belongs to the thaumatin family.