No, you cannot use Form 1040EZ to claim credit for estimated taxes paid for 2017. You will have to file either Form 1040A or 1040.
From IRS Publication 505 (page 49)
"Take credit for all your estimated tax payments for 2016 on line 65 of Form 1040 or line 41 of Form 1040A. Include any overpayment from 2015 that you had credited to your 2016 estimated tax. You must use Form 1040 or Form 1040A if you paid estimated tax. You cannot file Form 1040EZ."
You can enter your estimated taxes paid by using the search feature in the top right hand corner of your screen and searching for "estimated tax payments" and click the "jump to" link. Make sure you are inside your return before searching (click the Take Me to My Return button if you are just logging in). This will bring you right to the appropriate section to get credit for your estimated taxes paid.
