Beniusis only started one game during his spell at Tynecastle and decided to return to Lithuania in the search of regular first-team football.
Boss Stephen Frail confirmed: "He featured very rarely. He started the Hibs game at the beginning of the season and has not started one since.
"Ricardus was a nice lad and a good trainer, but we couldn't see a regular place for him in the team. Kaunas have taken him back and we wish him all the success."