Is predicted to encode a protein with the following domains: Cyclin-like; Cyclin-like superfamily; Galactose-binding-like domain superfamily; Cyclin, N-terminal domain; PITH domain superfamily; PITH domain; and Cyclin, N-terminal. Is an ortholog of C. elegans cyy-1. In C. elegans, cyy-1 is involved in negative regulation of synapse assembly; regulation of neuron remodeling; and regulation of terminal button organization.