Protractor + chrome driver: Element is not clickable at point

You should set window size in your config file

onPrepare: function() {
  browser.manage().window().setSize(1600, 1000);
}

Following worked fine for me:

browser.actions().mouseMove(element).click();

Edit: If above does not work try chaining perform() method too(I got this as an edit suggestion, I have not tested it but somebody could verify it and comment)

browser.actions().mouseMove(element).click().perform();