I received an email requesting my iPad information on my lost device

read

Identify legitimate emails from the App Store or iTunes Store - Apple Support

and

Recognize and avoid phishing messages, phony support calls, and other scams - Apple Support

if they get you to follow a link to a fake page and type in your appleID and password they can remove the activation lock and be able to use and or sell the device

How did you receive this message requesting information? Apple will not request information from you.

You may have received a scam message that is designed to fool you into releasing information that can be used to either take-over your AppleID account - and/or acquire information needed to reuse your stolen device. If you lose control of your AppleID account, you will have handed full control to the thieves; it’s then “game over”.

Rudegar has already provided key information links that you can use to establish if the message that you have received is genuine - however, as Apple will not ask you information about a stolen device, it is almost certain that the messages are intended to fool you.