Making your website mobile friendly is about to become even more important! Google has announced an algorithm update that will go live on the 21st of April. Website mobile-friendliness will become a ranking signal and significantly impact search results.
They have also provided a webpage to check if your website is mobile friendly, although it seems pretty basic. You are probably better off checking out the Google PageSpeed Insights page to get a better idea of what Google thinks of your mobile friendly website capabilities. If you have a Google Webmasters account, you can also check your mobile-friendliness report here.