Votthapana-citta: 'determining consciousness', is that mindelement functioning independently of kamma; see: Tab. I, 70. which in the process of sense-perception performs the function of determining the sense-object. It is one of the 14 functions of consciousness vinnana-kicca.
Maha Thera Nyanatiloka. Manual of Buddhist Terms and Doctrines, Buddhist Publication Society, first edition 1952.