Meiosis-specific cyclin. Required for normal homolog synapsis and recombination in early to mid-prophase 1. May regulate the timing of sister chromatid separation. May interact with CDKA-1 AND CDKB1-1. Expressed during male meiosis specifically in male meiotic cells (male meiocytes within anther locules). Expressed during female meiosis specifically in the female meiocytes within the ovule. Plants exhibit a severe defect in homolog synapsis recombination and bivalent formation in prophase 1, resulting in random chromosome distribution and formation of abnormal meiotic products. Belongs to the cyclin family.