WD-40 repeat family protein. similar to signal transducer [Arabidopsis thaliana] (TAIR:AT4G22910.1); similar to cell cycle switch protein [Medicago sativa subsp. x varia] (GB:AAD22612.1); similar to cell cycle switch protein CCS52A [Pisum sativum] (GB:AAY58272.1); similar to WD-repeat cell cycle regulatory protein [Medicago truncatula] (GB:AAF37386.1); contains InterPro domain WD40 repeat-like (InterPro:IPR011046); contains InterPro domain WD40/YVTN repeat-like (InterPro:IPR015943); contains InterPro domain WD40 repeat (InterPro:IPR001680); contains InterPro domain Cdc20/Fizzy (InterPro:IPR000002)