I am registered keeper of car but don't drive, can I insure it for an employee to drive it for me?

Yes, you can but you need to select the right type of car insurance and that depends on the nature of your business and what the use of the car will be in relation to it.

If the employee will use the car to attend meetings, go to other offices or meet up with clients, then you will need to have business car insurance in place. If the car will be used to transport business goods, then commercial insurance will be more appropriate.

So what exactly will the employee use the vehicle for?