Google Play Store grayed out and not syncing

A

AC Question

Hey Gang :)

I recently flashed Cyanogenmod 10.1 to my Huawei Y210, and I've since run into issues with the Google Play Store. That is, I simply can't open it - I click it and nothing happens.

Further, if I go to the list of apps, the Play Store is grayed out.

Something I don't doubt is related is that when I added my Google account, Google Play Services crashed (and does so repeatedly if I sign out and re-add).

And yet the account is shown in Accounts & Sync settings, and the sync icon next to it is green.

From the app store on my computer, in the 'Most Recent' column, it shows my phone as having been seen several days ago, and when I send an app update to my phone, for example, it says it'll arrive shortly and then never does.

I installed Gapps 20130812, which, unless I'm mistaken, is the correct version for Cyanogenmod 10.1/Android 4.2

I've already tried a myriad of things, including:

*toggling mobile data and wifi on/off
*testing internet connection on the phone
*wiped cache partition
*removed/re-added Google credentials
*attempted to force-stop and clear cache of Play Store (which isn't even doable, presumably since it's already grayed out)
*Updating Gapps (originally had 20110828, but then flashed 20130812)

The only thing left I can think to do is re-flash the ROM and Gapps over again, but that's a shot in the dark.

Any other suggestions you all might have would be greatly appreciate! :)