This lizard was a messenger from Kumogakure.
It was small and looked like a normal lizard. It had light-blue skin and yellow eyes.
It had displayed the ability to control its chakra and walk on water, similar to real-life basilisk lizards.
It was used by J to deliver messages to his fellow Kumogakure ninja trailing team Taka. Before they were able to accomplish this, however, it was stabbed through the back by Sasuke before dispatching J, ceasing transmission and prompting the trailing team to retrieve him.